GeoSIM Global Sim Card Works In 99% Of Handsets

Phone Compatibility

Remeber that your handset MUST be Unlocked
to use GeoSIM (or any other SIM).

GeoSIMs systems are made to comply with GSM standards.
Unfortunately some manufacturers don't always adhere to these standards
exactly on all handset models and firmware versions. On rare occasions
a combination of firmware and handset, or the way the handset was unlocked
may prevent the GeoSIM from functioning as it should. In most instances
dialing using a prefix (show below) allows calls to be made. However in
very occasional instances, some handset simply won't make a call.

If using you own handset....

Some customers have reported that they have been
unable to use GeoSIM with the following handsets:

If you find that you are unable to make calls with
your handset, first try the prefix method of dialing as outlined below.
If that fails, you will need to use an alternative handset.

GeoSIM Handsets

Most people want to use their existing handset, but
some want a "phone for travelling". We supply a small range
of compatible handsets that are unlocked and SIM free meaning you can
use them with GeoSIM. Take a look HEREat
our range of handsets.

Prefix Dialling

Most handsets will allow normal dialling; which means
you simply enter the number you wish to call, and the SIM places the call.
However, some Handsets will require a prefix to be dialled.

If a particular handset generates a "call barring"
type message and no callback arrives,it will be neccessary to either dial
with the prefix (below - which can also be stored in your Mobile phone
directory using this format) or use the "CallBack" menu option
on the SIM.

Numbers should be dialed using the following format:

* country code and number #

e.g *447624123456# send.

Many Handsets have a Menu Option called "SIM
Services" when GeoSIM is inserted. If your handset needs the prefix
to be dialed you can work around this by looking for the "Call Back"
menu option under SIM services. Selecting this option allows you to dial
normally. You could also set up a "short cut" on your handset
to the Call Back menu option so you can quickly access the option and
enter the number to dial normally without the Prefix.

For more details see our Quickstart guide
which contains everything you need to know to start using your GeoSIM.